Vulnerability Description
Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. An uncontrolled resource consumption vulnerability exists after version 2.3.0 through version 2.7.0. Within the URI template implementation in Addressable, a maliciously crafted template may result in uncontrolled resource consumption, leading to denial of service when matched against a URI. In typical usage, templates would not normally be read from untrusted user input, but nonetheless, no previous security advisory for Addressable has cautioned against doing this. Users of the parsing capabilities in Addressable but not the URI template capabilities are unaffected. The vulnerability is patched in version 2.8.0. As a workaround, only create Template objects from trusted sources that have been validated not to produce catastrophic backtracking.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Addressable Project | Addressable | >= 2.3.0, < 2.8.0 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://github.com/sporkmonger/addressable/commit/0d8a3127e35886ce9284810a7f2438PatchRelease NotesThird Party Advisory
- https://github.com/sporkmonger/addressable/security/advisories/GHSA-jxhc-q857-3jThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://github.com/sporkmonger/addressable/commit/0d8a3127e35886ce9284810a7f2438PatchRelease NotesThird Party Advisory
- https://github.com/sporkmonger/addressable/security/advisories/GHSA-jxhc-q857-3jThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2021-32740?
CVE-2021-32740 is a vulnerability with a CVSS score of 7.5 (HIGH). Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. An uncontrolled resource consumption vulnerability exists after version 2.3.0 through ve...
How severe is CVE-2021-32740?
CVE-2021-32740 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-32740?
Check the references section above for vendor advisories and patch information. Affected products include: Addressable Project Addressable, Fedoraproject Fedora.